Graham Walker

Star readers became budding Spielbergs today to film a real Cliffhanger - celebrating the longest day at the city’s biggest outdoor event for adventure sports fans.

Thousands turned up to watch and take part in activities, including biking, climbing and free running, on the first of the two day annual Cliffhanger event at Millhouses Park.

Cliffhanger in Millhouses Park

We set readers the longest challenge, on what was the longest day - Saturday, June 21 - and many of you helped us to produce a unique video report of the day.

It shows all the highlights, capturing the action through the eyes of visitors and exhibitors.

The finished film, with soundtrack Summer Somewhere by local band Screaming Maldini, will be shown on a big screen at the event on Sunday.

But first you can see it here online.

Fun in the sun at the 2014 version of Cliffhanger held in Millhouses Park

VIDEO: Press the play button to watch our Cliffhanger longest day video.

Our panel of Star editorial judges will now decide which clip is the best and the winner gets a cash prize.

It was filmed on all types of devices, including video cameras, headcams, mobile phones or web tablets. But we sure you’ll agree, the finished result is amazing - Oscar winning stuff.

We promoted the making of the video on social media using #thestarlongestday – and we will now be promoting it using the same hashtag.

Fun in the sun at the 2014 version of Cliffhanger held in Millhouses Park

So please retweet it and help us to spread the message - that Star readers are great film-makers and Cliffhanger is a fantastic family event.

If you missed Saturday, remember it’s a two day event. So get yourself along on the Sunday, from 10.30am.

Digital editor Graham Walker said: “We want to give a big thanks to Star readers for helping us to make this video. We’re making it easier than ever for readers to now share their words, pictures and video with us, including a new widget on our web sites.

“Twitter, Facebook, Instagram, Vine and all other social networks are important to us, not onlyto get our messages out to readers but for you to interact with us.

“The longest day video at Cliffhanger was a fantasic example of how exciting this is when a great plan comes together.”

Cliffhanger is organised by Sheffield City Council in conjunction with Heason Events. For more see www.cliff-hanger.co.uk.